Zhang Lanhua, Chen Juan, Wang Mei, Li Yujuan, Xue Shaowei, Tang Yiyuan, Sun Baoliang
College of Information and Engineering, Taishan Medical University, Taian 271016, China.
Center for Cognition and Brain Disorders, Department of Psychology, Hangzhou Normal University, Hangzhou 310036, China.
PLoS One. 2016 Aug 25;11(8):e0161653. doi: 10.1371/journal.pone.0161653. eCollection 2016.
We study the effect of subtle changes on the evolution in the scale-free (SF) networks. Three extended models are evolved based on competition and inner anti-preferential deletion in growth and preferential attachment processes. By nonlinear and dynamic controlling on randomness and determinacy, three models can self-organize into scale-free networks, and diverse scaling exponents appear. Moreover, the model with more determinacy has more stringent parameter control than randomness, especially in the edge deletion. Our results suggest that the nature of the topology universality and dissimilarity in SF networks may be the subtle changes of randomness and determinacy.
我们研究了无标度(SF)网络中细微变化对演化的影响。基于生长过程中的竞争和内部反优先删除以及优先连接过程,演化出了三个扩展模型。通过对随机性和确定性进行非线性动态控制,这三个模型能够自组织成无标度网络,并且出现了不同的标度指数。此外,确定性更强的模型比随机性模型具有更严格的参数控制,尤其是在边删除方面。我们的结果表明,无标度网络中拓扑普遍性和差异性的本质可能是随机性和确定性的细微变化。